Indiana Code Title 8. Utilities and Transportation § 8-16-3-1

Sec. 1. Notwithstanding IC 8-18-8-5, all municipal corporations and county executives may provide a cumulative bridge fund to provide funds for the cost of construction, maintenance, and repair of bridges, approaches, small structures, culverts, and grade separations under their jurisdiction.  The county executive may use this fund for making county wide bridge inspection and safety ratings of all bridges in a county not on the state highway system.  The inspection and safety ratings shall meet all the criteria of the National Bridge Inspection Standards promulgated by the Federal Highway Administration, U.S. Department of Transportation and shall be supervised and approved by a competent, qualified engineer, registered in the state.